3SVG

Crystal Structure of the first bromodomain of human BRD4 in complex with a 3,5-dimethylisoxazol ligand

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	277	0.2M Na2SO4, 0.1M BTProp, 20% PEG 3350, 10% EtGly, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.66

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 37.66	α = 90
b = 44.19	β = 90
c = 77.85	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV		2011-02-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E SUPERBRIGHT	1.52

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.68	25.95	99.8	0.067	0.067	13.5	4.4	15460	15429			21.1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.68	1.77	99		0.58	0.58	1.3	3.8	2207

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 2OSS	1.68	25.95	15411	15383	767	99.82	0.1776	0.1776	0.1756	0.2154	RANDOM	19.6267

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
1.28			-0.65		-0.63

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.355
r_dihedral_angle_4_deg	14.411
r_dihedral_angle_3_deg	11.653
r_scangle_it	7.388
r_scbond_it	5.472
r_dihedral_angle_1_deg	5.169
r_mcangle_it	4.135
r_mcbond_it	2.791
r_angle_refined_deg	1.552
r_angle_other_deg	0.953
r_mcbond_other	0.87
r_chiral_restr	0.093
r_bond_refined_d	0.015
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1052
Nucleic Acid Atoms
Solvent Atoms	125
Heterogen Atoms	31

Software

Software
Software Name	Purpose
SCALA	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
MOSFLM	data reduction